It would've been lunacy for MS to name Expression Web as FrontPage 2007.
FrontPage it is not.
As has been regularly pointed out by every web pro for years, FrontPage is a dog. Good for newbies like myself to get started, and OK as an HTML script editor but very inefficient in WYSIWYG.
Expression Web is a top, standards compliant professional tool. It's no longer tied to the accursed FP extensions.
If MS had had possessed enough nous to also release it in a Mac OS version it would be a serious challenge to Dreamweaver's dominance.